DarkDM — Video Download Manager for Linux

DarkDM is a video download manager for Linux inspired by Internet Download Manager (IDM). It captures video from streaming sites through a browser extension + native host + yt-dlp integration.

Architecture

Extension (Vivaldi/Chrome MV3)
  ↓ chrome.debugger + captureStream + MediaSource
Native Host (Rust)
  ↓ native messaging
yt-dlp / ffmpeg / aria2c
  ↓
~/Downloads/DarkDM/

3 Capture Levels (like IDM)

1. Network interception — chrome.debugger detects HLS/DASH streams
2. Native Messaging — Rust host downloads via yt-dlp/ffmpeg
3. Buffer capture — captureStream grabs decoded video buffer

Quick Start

# Install
cd extension/
# Load unpacked in Vivaldi: vivaldi://extensions → Load unpacked

# Dependencies
sudo pacman -S yt-dlp ffmpeg aria2c

Project Structure

extension/        — Vivaldi/Chrome extension (MV3)
native-host/      — Rust native messaging host
openspec/         — Specifications (OpenSpec)
src-tauri/        — Desktop app (Tauri + Svelte)

Status

Feature	Status
YouTube download	✅ Works
HLS stream detection	✅ Works
captureStream (buffer)	✅ Works
yt-dlp integration	✅ Works
Site-specific extractors	🔜 TODO
Desktop app (Tauri)	🔜 TODO